| 7411.10.00 | 20 | Copper tubes and pipes. - Of refined copper - For refrigeration or air conditioning (ACR), unworked | KGM | | |
| 7411.10.00 | 31 | Copper tubes and pipes. - Of refined copper - Other, unworked: - Industrial or commercial | KGM | | |
| 7411.10.00 | 39 | Copper tubes and pipes. - Of refined copper - Other, unworked: - Other | KGM | | |
| 7411.10.00 | 40 | Copper tubes and pipes. - Of refined copper - Worked | KGM | | |
| 7411.21.00 | 00 | Copper tubes and pipes. - Of copper alloys: - Of copper-zinc base alloys (brass) | KGM | Free | CCCT, LDCT |
| 7411.22.00 | 00 | Copper tubes and pipes. - Of copper alloys: - Of copper-nickel base alloys (cupro-nickel) or copper-nickel-zinc base alloys (nickel silver) | KGM | Free | CCCT, LDCT |
| 7411.29.00 | | Copper tubes and pipes. - Of copper alloys: - Other | KGM | Free | CCCT, LDCT |
| 7411.29.00 | 11 | Copper tubes and pipes. - Of copper alloys: - Other - Unworked: - Industrial or commercial | KGM | | |
| 7411.29.00 | 19 | Copper tubes and pipes. - Of copper alloys: - Other - Unworked: - Other | KGM | | |
| 7411.29.00 | 20 | Copper tubes and pipes. - Of copper alloys: - Other - Worked: - Worked | KGM | | |
| 7412.10.00 | 11 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of refined copper - Pressure type: - Wrought | KGM | | |
| 7412.10.00 | 19 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of refined copper - Pressure type: - Other | KGM | | |
| 7412.10.00 | 90 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of refined copper - Other | KGM | | |
| 7412.20.00 | | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys | KGM | Free | CCCT, LDCT |
| 7412.20.00 | 11 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Pressure type: - Forged | KGM | | |
| 7412.20.00 | 12 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Pressure type: - Cast | KGM | | |
| 7412.20.00 | 19 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Pressure type: - Other | KGM | | |
| 7412.20.00 | 90 | Copper tube or pipe fittings (for example, couplings, elbows, sleeves). - Of copper alloys - Other | KGM | | |
| 75.07 | | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). | | | |
| 7507.11.00 | 00 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel, not alloyed | KGM | Free | CCCT, LDCT |
| 7507.12.00 | | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys | KGM | Free | CCCT, LDCT |
| 7507.12.00 | 12 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys - Seamless, unworked, containing by weight 60% or more of nickel: - Nickel-copper alloys | KGM | | |
| 7507.12.00 | 13 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys - Seamless, unworked, containing by weight 60% or more of nickel: - Nickel-chromium-iron alloys | KGM | | |
| 7507.12.00 | 19 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys - Seamless, unworked, containing by weight 60% or more of nickel: - Other | KGM | | |
| 7507.12.00 | 90 | Nickel tubes, pipes and tube or pipe fittings (for example, couplings, elbows, sleeves). - Tubes and pipes: - Of nickel alloys - Other | KGM | | |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
